1%{
2/*
3 *
4 *  BlueZ - Bluetooth protocol stack for Linux
5 *
6 *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
7 *
8 *
9 *  This program is free software; you can redistribute it and/or modify
10 *  it under the terms of the GNU General Public License as published by
11 *  the Free Software Foundation; either version 2 of the License, or
12 *  (at your option) any later version.
13 *
14 *  This program is distributed in the hope that it will be useful,
15 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
16 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17 *  GNU General Public License for more details.
18 *
19 *  You should have received a copy of the GNU General Public License
20 *  along with this program; if not, write to the Free Software
21 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
22 *
23 */
24
25#ifdef HAVE_CONFIG_H
26#include <config.h>
27#endif
28
29#include <stdio.h>
30#include <errno.h>
31#include <unistd.h>
32#include <stdlib.h>
33#include <string.h>
34#include <sys/param.h>
35#include <sys/socket.h>
36
37#include <bluetooth/bluetooth.h>
38#include <bluetooth/rfcomm.h>
39
40#include "kword.h"
41
42int yylex(void);
43int yyerror(char *s);
44
45struct rfcomm_opts *opts;
46
47%}
48
49%union {
50	int number;
51	char *string;
52	bdaddr_t *bdaddr;
53}
54
55%token K_BIND K_DEVICE K_CHANNEL K_COMMENT
56%token K_YES K_NO
57
58%token <number> NUMBER RFCOMM
59%token <string> STRING WORD
60%token <bdaddr> BDADDR
61
62%type <number> bool
63
64%%
65
66config		:
67		| statement
68		| config statement
69		;
70
71statement	: section '{' rfcomm_options '}'
72		| rfcomm  '{' rfcomm_options '}'
73		| WORD
74			{
75			}
76		| error
77			{
78				yyclearin;
79				yyerrok;
80			}
81		;
82
83section		: WORD
84			{
85				opts = NULL;
86			}
87		;
88
89rfcomm		: RFCOMM
90			{
91				if (($1 >= 0) && ($1 < RFCOMM_MAX_DEV))
92					opts = &rfcomm_opts[$1];
93				else
94					opts = NULL;
95			}
96		;
97
98rfcomm_options	: rfcomm_option ';'
99		| error ';'
100		| rfcomm_options rfcomm_option ';'
101		;
102
103rfcomm_option	: K_BIND bool
104			{
105				if (opts)
106					opts->bind = $2;
107			}
108		| K_DEVICE BDADDR
109			{
110				if (opts)
111					bacpy(&opts->bdaddr, $2);
112			}
113		| K_CHANNEL NUMBER
114			{
115				if (opts)
116					opts->channel = $2;
117			}
118		| K_COMMENT STRING
119			{
120				if (opts)
121					snprintf(opts->comment, MAXCOMMENTLEN, "%s", $2);
122			}
123		| WORD
124			{
125				// Unknown option
126			}
127		;
128
129bool		: K_YES	{ $$ = 1; }
130		| K_NO	{ $$ = 0; }
131		;
132
133%%
134
135int yyerror(char *s)
136{
137	fprintf(stderr, "%s line %d\n", s, lineno);
138	return 0;
139}
140
141int rfcomm_read_config(char *filename)
142{
143	extern FILE *yyin;
144	char file[MAXPATHLEN + 1];
145	int i;
146
147	for (i = 0; i < RFCOMM_MAX_DEV; i++) {
148		rfcomm_opts[i].bind = 0;
149		bacpy(&rfcomm_opts[i].bdaddr, BDADDR_ANY);
150		rfcomm_opts[i].channel = 1;
151	}
152
153	if (filename) {
154		snprintf(file, MAXPATHLEN,  "%s", filename);
155	} else {
156		snprintf(file, MAXPATHLEN, "%s/.bluetooth/rfcomm.conf", getenv("HOME"));
157
158		if ((getuid() == 0) || (access(file, R_OK) < 0))
159			snprintf(file, MAXPATHLEN, "%s/rfcomm.conf", CONFIGDIR);
160	}
161
162	if (!(yyin = fopen(file, "r")))
163		return -1;
164
165	lineno = 1;
166	yyparse();
167
168	fclose(yyin);
169
170	return 0;
171}
172